* {
    padding: 0;
    margin: 0;
}

body {
    background-color: #f7f7f7;
}

.dato {
    width: 1000px;
    margin: 20px auto;
    padding: 40px;
    background-color: white;
}

.to {
    background-color: white;
    color: #6cca72;
    font-size: 20px;
    padding: 50px 0 0 10%;
}

.add {
    color: #6cca72;
    text-decoration: none;
}

.index {
    width: 400px;
    height: 400px;
    border: 1px solid red;
    margin: 100px auto;
}

.toer {
    color: #6cca72;
}

.sp {
    margin-left: 20px;
}

.red {
    background-color: red;
}

.niubi {
    overflow: hidden;
}

.kuang {
    width: 178px;
    height: 170px;
    margin: 10px;
    float: left;
}